Nut-lock.



J. S. LAPLEUR. NUT Loox'.

APPLIOATIOI FILED 1PT. 22, 1909.

(I/Um amnion t woes I :76 r 45. L (can VSQIQMQ 5w ,Patented June 7,1910.

J'EA'N SINIA. LAFLEUR, 0F OPELOUSAS. LOUISIQNA.

N UT LOCK.

Specification of Letters Patent.

Patented J une 7, 1910.

Application tiltll September I32. 1909. Serial No. 518,894.

To all whom it may concern:

Be it known that. l, JEAN Stun liu niai'a,

Opclousas, in the parish of St. Landry and State of lmuisiana, have invented certain new and useful llllpI'OVtllll -Hi in Nut-lurks, of which the following is a spei-itimtion, reference being panying drawing.

This invention relates to uutdtmks, and the principal object of the same is to provide thread-gripping means which are carried by the nut and adapted to tightl grip bolt and nut cannot be relative] rotated.

The, invention also eonteuiphites means whereby the thread gri per may be mauually released from the lt when iii-.c-essary or desirable to separate the bolt and nut.

In earryingout the objects of the invenlion, generally stated above, it will be understood, of course, that the es ential features thereof are neeeasarily susceptible of changes in details and structural nrrm ement, one preferred and practical embo dimeat of which is shown in th-r accompanyingdrawii1ig, wherein-f h 1 are is a rspee we view 3 owm a bolt find nut hel d in locked relation by l he improved lockin device. Fig. 2 is an end view thereof. ig. 3 is a central vertical sectional view taken on the line 33, Fig, g Fig. 4 is a detail perspective view of the improved locking device.

eferring to said drawi s by numerals 1 desi ates a bolt provide with the usual threat ed ortion 2, and 3 designates a nut ada ted 1 engagement with said threads, sait nut being provided with a fastener opening 4, ad acent its central opening or bore 5.

The improved threaded grippin locking device is formed of sprin meta beiit to form a tubular body portion 6 the 001's 7 thereof being bent outwardly from said body and arranged in parallel spared relation.. Interiorly, said body is provided with teeth or serrations 8. At the rear of said body a pin ll projects outwardly from one 50 of the edges thereof, said pin lining prof a length to permit it to be passed throng a citizen of the United States, l'lriltllli}! at had therein to the dl'CUlllportion 10, and being the opening 4 of the nut 3, and its free end headed or riveted as indicated at 11 so that said body will be held in locked relation v. ilh the nut.

in applying th'enul. to the bolt, the paralll'l cud ears 7 of the-body are forced apart by means of a. suitable .tool inserted between the same so that the bod 6 will bee anded to clear the threads 0 the bolt 1. hen the nut has been tightened upon the bol the tool is removed from-between the sai the threads of the bolt so that normal y said I ears, whereupon the body will ring into binding relation with the bolt an cause its teeth or serrations 8 to bite into the threads of the bolt. To release the nut, the body is expanded as described above.

It will be seen from the forcgoingthat the improved locking device may attuchcd to any nut by simply boring a hole through the same for the p 0 9, after which said pin may be ockcd wi saig opening by upsetting the free end of sax 1n.

Prgferably, the pin 9 is integral withsaid body, although it will be obvious the if desired, the same may be separate, ut ri idly fastened thereto.

Vhat I claim is: l

1. In a device of the character described, the combination with a bolt, of: nut and l releaable tubular body permanent] ac- Cll10d",&lhllt, and formed with ongitudinal teeth on its inner surface adapted to bite into ftlie Willi-d8 of the nut, and a ir 0 atom roject' ears to iiiid in close prbximity t d ach 0t r and adapted to be forced a art by a tool in order to release the tubu ar from the bolt and permit the said body and nut to be removed from the bolt.

2. In a device of the character described, the combination with a bolt, of a nut having a hole extending through the nut transversely, and a releasable tubular body having, a ll" projecting from its inner edge and extent ing through said hole in thenut, and permanently securedthercto, said tubular Mill} having longitudinal teeth on its in- 100 the in ner whee adapted to bite the threads of I the bolt and also having a pair of laterallg i si projecti ears in close proximity to eac In testimony whereof I heregnto afiix my gnature-in presence of two wltneeses.

other an adapted to be forced apart by JEAN SINIA LAFLEUR' 5 a tool in order to release the tubular body Witnesses:

fif-om the bolt and permit the withdrawal TILGHMAN G. CIIACHERB, Jr.,

0 the nut.

Yomuox LEDOU. 

